CN101951844A - The interior speckle turnery device of tube chamber with prebuckling driving shaft - Google Patents
The interior speckle turnery device of tube chamber with prebuckling driving shaft Download PDFInfo
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- CN101951844A CN101951844A CN2008801206790A CN200880120679A CN101951844A CN 101951844 A CN101951844 A CN 101951844A CN 2008801206790 A CN2008801206790 A CN 2008801206790A CN 200880120679 A CN200880120679 A CN 200880120679A CN 101951844 A CN101951844 A CN 101951844A
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- pars convoluta
- driving shaft
- bending pars
- turnery
- bending
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
- A61B2017/320766—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven eccentric
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Abstract
The invention provides moving a kind of have speckle turnery system, apparatus and method in flexible, the tube chamber elongated, rotatable driving shaft, the pre-bending pars convoluta of driving shaft is provided with grind section.Device can further comprise the concentric or eccentric diameter portion of expanding, and diameter portion to the small part of expanding is coated with grinding-material to constitute grind section.Grind section can further be made of grinding hat that is fixed on driving shaft or grinding awl.The driving shaft of prebuckling makes in the process of high speed rotating, can scan bigger diameter in the milling zone of using minor diameter more and/or weight.By inserting lead, pre-bending pars convoluta territory is straight basically, is used to insert vascular system and is positioned nearly stenosis.Lead removed from pre-bending pars convoluta territory make driving shaft be returned to its prebuckling attitude with resection organization.Lead inserts again and passes pre-bending pars convoluta territory aligning driving shaft, is convenient to it and removes.
Description
Technical field
The present invention relates to remove the equipment and the method for tissue, for example adopt speckle turnery art (atherectomy) equipment in a kind of high speed rotating tube chamber, from tremulous pulse, remove atherosclerotic plaque from body passageway.
Background technology
Developed numerous technology and instrument, in order to remove or repair in the tremulous pulse tissue and with the similar human body passage of tremulous pulse in tissue.These technology and instrument most common use are the atherosclerotic plaque of removing in patient's tremulous pulse.Atherosclerotic feature is that (atheroma, atheromas) inner membrance (interior subcutaneous) the patient vessel forms the continuous accumulation of fat.Usually, As time goes on, softer relatively at first deposition, the tremulous pulse medicated porridge sample material hardens that is rich in cholesterol becomes the atherosclerotic plaque of calcification.This atheromatous plaques has limited flowing of blood, therefore be commonly called narrow sexually transmitted disease (STD) and become (stenotic lesions) or narrow (stenoses), and clogged material is called as stenotic material.If not to its processing, thisly narrowly can cause diseases such as angor, hypertension, myocardial infarction, apoplexy.
Atheromatous plaque turnery art has been a kind of common technique that is used to remove those stenotic material.This operation is most commonly used to get through the starting stage at calcify lesion place in the coronary artery.Under most of situation, atheromatous plaque turnery art is not used separately, thereafter be accompanied by air bag angioplasty (balloonangioplasty procedure) usually, the implantation that then also is attended by endovascular stent after the air bag angioplasty usually is to help to keep unimpeded (patentcy) that is got through blood vessel.For non-calcify lesion district, the air bag angioplasty often is used to get through tremulous pulse separately, and endovascular stent is usually used in keeping is got through the unimpeded of blood vessel.Yet, research has been presented at accepts the air bag angioplasty and tremulous pulse is inserted among the patient of endovascular stent, have the patient of suitable vast scale the endovascular stent restenosis to occur--be that endovascular stent is blocked, this normally after a period of time, causes because of the scar tissue undue growth in the endovascular stent.In this case, atherosis turnery art has just become the preferred operation of removing too much scar tissue in support from endovascular stent (balloon angioplasty to be not very effective), thereby recovers the unimpeded of blood vessel.
Several stenotic material atheromatous plaque turnery art equipment that are used to remove have been developed.A kind of equipment shown in patent United States Patent (USP) 4,990,134 (Auth), the end of soft drive bar have and are covered with grinding-material, diamond grains for example, (concentrically) ellipsoid grinding core (burr) of being shaped with one heart.When passing forward, grinding core highly rotates when narrow (usually, for example 150,000～190, between the 000rpm).But grinding core has hindered blood flow when removing stenotic tissue.In case it is narrow that grinding core passes forward, tremulous pulse will be got through, and its diameter and grinding core maximum outside diameter are quite or bigger.Usually, because grinding core has fixed static diameter (resting diameter), thus must use the grinding core that surpasses a kind of size, to get through the opening of required diameter at tremulous pulse.So, the equipment scheme of Auth does not have to disclose other can cover variable or bigger than the static diameter of grinding core diameter in high speed rotating change.
United States Patent (USP) 5,681,336 (Clement) provide a kind of off-centre (eccentric) tissue to remove grinding core, and its outer surface partly has by the fixed abrasive grains of suitable jointing material.Yet this structure has its limitation, explains that at 53～55 row on the 3rd hurdle like that, the rotary speed of asymmetric grinding core " is lower than the speed that high speed is excised equipment, with the imbalance of balance heat or equipment " as Clement.In other words, the solid grinding core that size and volume both are given, in the atheromatous plaque operation process, the grinding core high speed rotating is infeasible, for example 20,000～200, the rotating speed between the 000rpm.In fact, barycenter departs from the rotating shaft of drive rod, can cause significant, unwanted centrifugal force, and this centrifugal force can apply too big pressure to ductus arteriosus wall, produces a large amount of heat and excessive granule.As the patent of Auth, the size of grinding core is fixed, may need to use the grinding core that surpasses a kind of size to get through the opening of required diameter at main tube cavity.
United States Patent (USP) 6,132,444 (Shturman) and 6,494,890 (Shturman) (the two is all commonly assigned), disclosed atherosis speckle excision equipment have a kind of driving shaft that expands eccentric part, and wherein this at least one section of expanding parts is covered with grinding-material.When high speed rotating, grind section can be removed stenotic tissue from tremulous pulse.This equipment can be got through diameter than expanding the big opening of static diameter of eccentric part at tremulous pulse, and partly cause is that the track in the process of running up rotatablely moves.It mainly is to produce because expand the rotating shaft that the barycenter of eccentric part departs from driving shaft that track rotatablely moves.Because the eccentric part that expands can comprise the driving shaft coil that does not link together, driving shaft expand eccentric part in the height operation process or implant in the narrow process can be crooked.This bending makes and produce a larger-diameter opening in the process of running up, but compares control operation that need be less with the opening of getting through required diameter in the tremulous pulse grinding.The U.S. 6,132,444 and 6,494,890 is disclosed, all references as a whole of each patent of here mentioning.
The U. S. application serial number of commonly assigned Prudnikov is 11/876891, name is called the patent application of " RotationalAtherectomy Device With Counter weights ", the use counterweight is disclosed to strengthen, or the orbital motion of inhibition grind section, its disclosure is introduced in full at this.Technology, the method and apparatus described in that patent application can be used for obtaining the grind section rotating diameter bigger than the static diameter of grind section.
Technology and the device of diameter greater than the static diameter of grind section scanned in other available acquisition rotations, generally includes the lead of prebuckling, when it places the intracavity of rotating driveshaft, causes that driving shaft is in the milling zone bending.When lead is removed, driving shaft returns to that it is crooked normally, be the form of linearity substantially.Being arranged so that like this, when prebuckling lead original position keeps, cause driving shaft milling zone scan diameter greater than its static diameter.The example of this prebuckling wire scheme comprises the United States Patent (USP) 5,312,427,5,356,418,5,554,163 of Shturman and patent commonly-assigned us thereof.Other examples comprise 6,156,046 of the United States Patent (USP) 5,548,843 of Wulfman and Passafaro.
Each lead of prebuckling lead designing requirement is retained in the intracavity of driving shaft, and to obtain driving shaft and the desired bending of milling zone, this can influence the flexibility of driving shaft when high speed rotating.Further, prebuckling lead mode arrives and has difficulties aspect the target stenosis passing crooked vascular system.
Therefore, provide a kind of in that to enter patient's vascular system inlet basic for linear, but allow the milling zone of driving shaft simultaneously, to the prebuckling of small part based on driving shaft itself, rather than as before designed employed lead, will have significant advantage.
The present invention is intended to satisfy, and particularly these need.
Summary of the invention
The invention provides the interior speckle turnery system of tube chamber a kind of flexibility, elongated, rotatable driving shaft, driving shaft is provided with the grind section that is arranged in the driving shaft pre-bending pars convoluta.Device can further be provided with the concentric or eccentric diameter portion of expanding, and diameter portion to the small part of expanding is coated with grinding-material to constitute grind section.Grind section can further be made of grinding hat that is fixed on driving shaft or grinding awl.The prebuckling driving shaft makes and the milling zone can use minor diameter more and/or weight scan and to obtain larger diameter simultaneously when high speed rotating.The pre-bending pars convoluta is straight substantially, is used to insert vascular system and is positioned nearly stenosis.With lead from the pre-bending pars convoluta remove make driving shaft be returned to its prebuckling attitude with the excision.Lead inserts again above pre-bending pars convoluta aligning driving shaft, is convenient to it and removes.
An object of the present invention is to provide a kind of high-velocity tube intracavity speckle turnery equipment with grind section, the diameter during the grind section high speed rotating is bigger than its static diameter.
Another object of the present invention provides the high-velocity tube intracavity speckle turnery equipment that a kind of pre-bending pars convoluta at driving shaft has grind section.
Another object of the present invention provides a kind of driving shaft that is provided with the pre-bending pars convoluta, and is provided with the high-velocity tube intracavity speckle turnery equipment that saves that expands of driving shaft in the pre-bending pars convoluta.
Another object of the present invention provides a kind of driving shaft that is provided with the pre-bending pars convoluta, and is provided with the high-velocity tube intracavity speckle turnery equipment that expands grind section with one heart of driving shaft in the pre-bending pars convoluta.
Another object of the present invention provides a kind of driving shaft that is provided with the pre-bending pars convoluta, and the off-centre that is provided with driving shaft in the pre-bending pars convoluta is expanded the high-velocity tube intracavity speckle turnery equipment of grind section.
Another object of the present invention provides a kind of driving shaft with pre-bending pars convoluta, and in the pre-bending pars convoluta, be provided with eccentric, be the hat that is fixed in driving shaft of entity to small part.
Another object of the present invention provides a kind of driving shaft that is provided with the pre-bending pars convoluta, and is provided with the high-velocity tube intracavity speckle turnery equipment of the grinding awl that is fixed on the driving shaft in the pre-bending pars convoluta.
Another object of the present invention provides a kind of driving shaft that is provided with the pre-bending pars convoluta, and is provided with the high-velocity tube intracavity speckle turnery equipment that is fixed on the concentric grinding awl on the driving shaft in the pre-bending pars convoluta.
Another object of the present invention provides a kind of driving shaft that is provided with the pre-bending pars convoluta, and is provided with the high-velocity tube intracavity speckle turnery equipment that the off-centre that is fixed on the driving shaft is ground awl in the pre-bending pars convoluta.
Another object of the present invention provides a kind of driving shaft that is provided with the pre-bending pars convoluta, and is provided with the high-velocity tube intracavity speckle turnery equipment of the grinding annular ring awl that is fixed on the driving shaft in the pre-bending pars convoluta.
Another object of the present invention provides a kind of high-velocity tube intracavity speckle turnery equipment with driving shaft of pre-bending pars convoluta, its flexure plane dynamic adjustable.
Another object of the present invention provides a kind of system and method and reaches, particularly above purpose.
Accompanying drawing and follow-up detailed description thereof, exemplary explanation these and other embodiment of the present invention.
Description of drawings
With reference to following detailed description to various embodiments of the present invention, and can more intactly understand the present invention in conjunction with the accompanying drawings, accompanying drawing is as follows:
Fig. 1 is the perspective view of one embodiment of the invention.
Fig. 2 is the cross sectional side view of an embodiment of technical equipment formerly;
Fig. 3 is the cross sectional side view of an embodiment of technical equipment formerly;
Fig. 4 is the side view of one embodiment of the invention;
Fig. 5 is the side view of one embodiment of the invention;
Fig. 5 A is the section end view of one embodiment of the invention;
Fig. 6 is the cut-away section side view of one embodiment of the invention;
Fig. 7 is the cross sectional side view of one embodiment of the invention;
Fig. 8 is the cross sectional side view of one embodiment of the invention;
Fig. 9 is the cross sectional side view of one embodiment of the invention;
Figure 10 is the cross section of one embodiment of the invention;
Figure 11 is the track rotation sketch map of one embodiment of the invention.
The specific embodiment
Because change or replacement that the present invention has various reasonable, therefore, this paper is by providing accompanying drawing and describing in detail to show details of the present invention.But, should be noted in the discussion above that its intention is not meant to limit invention and is specifically described embodiment.Opposite, it is intended that all changes of covering in design of the present invention and the scope, is equal to and replaces.
That Fig. 1 represents is an embodiment of interior speckle turnery system of tube chamber of the present invention and equipment.System is provided with holds hand 10, elongated, flexible driving shaft 20, and driving shaft 20 is provided with grind section 28, and grind section 28 is illustrated as eccentric hat 28A without limitation, is fixed on the driving shaft 20, and from holding the hand 10 terminal slender conduits 13 that extend.Driving shaft 20 is made of the helical disk coiling, as shown in the figure, is fixed with eccentric hat 28A on the driving shaft 20.Conduit 13 has the chamber, and intracavity is arranged with the overwhelming majority of driving shaft 20, also comprises grind section 28 in certain embodiments, and the terminal 20d of short portion that is connected to grind section 28.Driving shaft 20 is provided with inner chamber equally, makes driving shaft 20 advance and rotate by the effect of lead 15.Liquid supply line 17 can be used for conduit 13 is introduced in cooling and lubrication solution (being generally saline solution or another kind of biocompatible solution).In certain embodiments, Wen bio-compatible liquid is introduced into conduit 13.Grind section 28A as off-centre hat 28A, is typically provided with to small part covering and the grinding layer on it, the removal that is beneficial to organize.As a kind of conversion, grind section 28, as the surface of off-centre hat 28A, can be to small part roughening and/or etching, the removal that is beneficial to organize.
Hold hand 10 and preferably have turbine (or similar rotary drive mechanism), be used to drive driving shaft 20 high speed rotating.Hold hand 10 and generally can be connected to power source, as the compressed air of carrying by pipe 16.A pair of optical fiber can also be set, be used to monitor the rotating speed (details of relevant this handle and relevant apparatus is that those skilled in the art are known) of turbine and driving shaft 20.Hold hand 10 and also preferably be provided with control knob 11 and be used for advancing or recalling turbine and driving shaft 20, and consider conduit 13 and hold the body of hand 10.
As shown in the figure, driving shaft 20 is essentially wire or straight, has the lead 15 that passes the driving shaft inner chamber, and lead 15 extend pasts also exceed grind section 28.
With reference now to Fig. 2 and 3,, Fig. 2 and 3 expressions be two embodiment of technology grind section 28 formerly.Fig. 2 has the cross-sectional view of the rotating driveshaft 20 of cavity 19.Illustrated equipment is wire substantially, in the chamber 19 of driving shaft lead is not set.Further, eccentric entity hat 28A as shown in the figure constitutes grind section 28.Eccentric entity hat 28A is made up of nearly portion 30, middle part 35 and terminal 40.The grinding-material (not shown) as known to those skilled in the art, can be coated on one or more parts of the nearly 30A of portion, middle part 35A and terminal part 40A.For example, grinding-material can be any suitable material, as diamond dust, vitreous silica, titanium nitride, tungsten carbide, aluminium oxide, Norbide. or other ceramic materials.Preferably, grinding-material directly is fixed on the coil of driving shaft 20 by diamond chip (or diamond dust granule) by suitable adhesive layer 26, this fixing technology that can know by use, as traditional plating or integration technology (referring to, as United States Patent (USP) 4,018,576) obtain.Effect is replaced, and tissue is removed outer surface can simply be the coil of roughening, so that a kind of suitable abradant surface to be provided.The another kind of replacement, outer surface by etching or cutting (as, pass through laser), so that a kind of little but sharp facet to be provided.Other similar techniques also can be used for providing a suitable tissue to remove the surface.
What Fig. 3 represented is another technology implementation example formerly, and wherein, driving shaft 20 is provided with grind section 28, and grind section 28 is expanded the 28B of portion by the off-centre of driving shaft 20 and formed, and driving shaft 20 has chamber 19 (not shown)s that are used to hold lead.Driving shaft 20 as shown in Figure 2, is a wire substantially, in its chamber 19 lead is not set.
At least a portion of grind section 28, off-centre are as shown in the figure expanded diameter portion 28B (be preferably middle part 35) and are had the coating 36 that is made of grinding-material 24, remove sections with the tissue of determining driving shaft 20.Grind section 28 has the diameter portion of expanding 28B, also can and be provided with tissue with reference to Fig. 1 and 2 according to above-mentioned method, material and technology and remove sections.
Forward Figure 4 and 5 now to, being two of driving shaft 20 of the present invention and improving embodiment of expression.Each embodiment is provided with the pre-bending pars convoluta 100 with flexure plane, further is provided with the grind section 28 that is placed on driving shaft 20 when forming and/or operating, and grind section 28 to small part is positioned at the peak P of pre-bending pars convoluta 100.Preferably, pre-bending pars convoluta 100 is arranged on the terminal part of nearly portion driving shaft 20 of driving shaft 20.Grind section 28 as shown in the figure has tool and connects and be arranged on the driving shaft 20, and the curved surface of driving shaft 20 does not have further processing, expands as above-mentioned drive shaft section.
As shown in Figure 4, the peak P of pre-bending pars convoluta 100 can be a point substantially, or as shown in Figure 5, is the point that row's substantially linear distributes, and makes the curved surface of peak P be wire substantially.Grind section 28 can be shaped and/or manually be placed at least a portion of the peak P of arbitrary embodiment.Further, pre-bending pars convoluta 100 further has as shown in the figure high H and long L.
In certain embodiments, flexure plane, as by high H and long L, and the radius of pre-bending pars convoluta 100 determines, is adjustable, dynamic adjustable will further describe hereinafter in certain embodiments, with the geometric shape of change path in the tract of narrow or health.Ratio between high H and the long L it will be apparent to those skilled in that as far as possible ratio between high H and the long L is greater than certainly also having practical value at 5: 1 preferably between 0.1: 1 to 5: 1; Each this ratio all within the scope of the invention.
In addition, will be in the embodiment that this further describes at some, the high H of pre-bending pars convoluta 100 and long L can be changed by the operator, in some embodiments of the invention, are narrowly progressively ground off by the present invention.Especially, according to the main environment in concrete needs and when operation, as the size through the path of stenosis, high H can improve (or reduction), and long L can prolong (or shortening).
Pre-bending pars convoluta 100 further is provided with at least one radius, be preferably two radius, and can be as shown in Figure 5, it is linear further being provided with basic, the wire portion that includes peak P, its peak P be substantially wire and roughly with driving shaft 20 near and away from the partial parallel of pre-bending pars convoluta 100.For example, can be provided with peak P between nearly radius Pr and the terminal radius Dr.Radius is variant aspect curvature, and may have or not have the basic curvature that equates.Orbital motion can be caused by the radius of different curvature.It will be apparent to those skilled in that the change of chamfering and curvature thereof, high H, long L, and the curved surface of peak P has a plurality of parameters, can form the combination of multiple wide model; These combinations all within the scope of the present invention.
Among the embodiment shown in Figure 4 and 5, can find out easily that it has grind section 28, operated by rotary motion is at peak P place, non-bending of lateral run-out and driving shaft R
DSLine part roughly, this lateral shift are generally determined by the high H of pre-bending pars convoluta 100.
Fig. 5 A represents be one embodiment of the invention in the high speed rotating process over against cutaway view, portion's face grind section 28 and or peak P within obtain.Therefore, driving shaft 20 is shown as and has the R of being labeled as
DSRotating driveshaft, the rotate path of the peak P of pre-bending pars convoluta 100 shown in Figure 4 and 5, shows on it to be provided with grind section 28.Driving shaft 20 rotation obtains scans diameter Ds, illustrate expanding of pre-bending pars convoluta 100 and scan rotate path, particularly the non-bending section of the peak P of pre-bending pars convoluta 100 and driving shaft 20 scan difference between the diameter, the non-bending section of driving shaft 20 scan the static diameter that diameter is limited to driving shaft 20 substantially.As shown in the figure, the peak P of pre-bending pars convoluta 100 is around R
DSAlthough rotation with one heart is can be around R among some embodiment
DSDeflection is to cause the orbital motion of peak P and grind section 28.
In addition, it will be apparent to those skilled in that, be provided with and have eccentric hat or the grind section 28 of eccentric awl or the drive division that expands of driving shaft as described here, in the process of pre-bending pars convoluta 100 high speed rotating, will produce an additional force to peak P, this will improve the rotary distance of peak P conversely, that is to say, enlarge and scan diameter Ds.This design can further cause orbital motion.
As discussing at this, grind section 28 form and/or manually at least the position be placed on P place, peak, various ways can be arranged, wherein each all within the scope of the present invention.For example, and it is unrestricted, grind section 28 can simply be a grinding-material, or shown in Figure 4 and 5, be coated on the cylindric driving shaft 20, wherein, grinding-material covers thereon, particularly bortz powder or its equivalent, or by etching or equivalent processes molding thereon, this technology is well-known to those skilled in the art.
As an alternative, grind section can be expanded portion to small part by the off-centre of driving shaft and be applied grinding-material, and as specifically describing at commonly assigned United States Patent (USP) 6,494,890, its disclosure is in these whole introducings.The grind section that is made of the driving shaft 20 off-centre portions of expanding that are coated with grinding-material has been described in it.Another replacement be grind section can by to the driving shaft 20 of small part coating grinding-material with one heart the portion of expanding constitute, as specifically describing at commonly assigned United States Patent (USP) 5,314,438, its disclosure is in these whole introducings, described the grind section that the portion of expanding with one heart by the driving shaft 20 that is coated with grinding-material constitutes in it.
Another replacement, grind section can be further by concentric awl or eccentric awl, concentric or eccentric hat is formed, as commonly assigned U.S. Patent application 11/761,128 is described, its disclosure is in these whole introducings, in its disclosure, the off-centre hat that is fixed in driving shaft 20 is disclosed, off-centre is preced with to small part and is coated with grinding-material, or be annular bull ring, of commonly assigned U.S. Patent application 10/272,164, its disclosure is in these whole introducings, in its disclosure, described a kind of grind section by annular ring that is coated with grinding-material or tube, grind section is fixed on driving shaft 20 surfaces, and each such grind section all can be fixed on the place, peak of driving shaft 20 pre-bending pars convolutas, no matter the grind section of driving shaft 20 is the cylindrical surfaces shown in Figure 4 and 5, still aforesaid with one heart or off-centre expand diameter portion.
It should be noted that, in this article, term " off-centre " is defined herein as the difference of geometric center position between the turning cylinder of grind section 28 in the multiple alternative embodiment described here and driving shaft, or the difference of centroid position between the turning cylinder of eccentric grind section 28 in the multiple alternative embodiment described here and driving shaft 20.These parameters are equipped with appropriate velocity of rotation, will make grind section 28 can get through narrow to a diameter substantially greater than the static diameter of grind section 28.In addition, for the eccentric grind section 28 that does not have regular geometric shapes, its " geometric center " roughly can be by the mid point of location picture through the long-chord of the turning cylinder of driving shaft, and connect its off-centre expand 2 that the periphery of diameter portion has on the cross section of greatest length place determine.In addition, it will be apparent to those skilled in that Ding Yi off-centre herein also can be for being concentric curved surface substantially, but a side of curved surface pass through, as hollow out grind section 28 1 side parts, than the heavier grind section 28 of opposite side.Further, when " off-centre " was used to describe the rotating diameter of grind section 28 of the present invention, its implication was not about equally for its radius of turn around grind section 28 rotate paths, and therefore, the orbital motion that is used for grind section 28 has been developed.
In addition, it will be noted that with one heart as used herein equally, the barycenter that is defined as grind section 28 exists, as with the rotating shaft conllinear of driving shaft 20, and with curved surface be symmetric substantially.In addition, when the rotating diameter of " with one heart " and grind section of the present invention is relevant, mean that its radius of turn around the rotate path of grind section 28 is equal substantially.
Describe device and system, will discuss the method that forms pre-bending pars convoluta 100 below in detail.
Pre-bending pars convoluta 100 can be fixed typing or regulate by multiple technologies, and wherein a kind of technology is special heat setting method.In this method, driving shaft 20 uses coil winding machine bending well-known to those skilled in the art to obtain.Next step, the whole length of crooked driving shaft 20 is 200 ℃ of thermal finalizations 1 hour, with lax and ballast coil size.Such processing usually sees that in the manufacturing industry right and wrong its purposes is to relax in advance crooked driving shaft 20 coils at spring and coil.It will be apparent to those skilled in that the number of times and the temperature that are used for pre-relaxation step have other changes, each this change all is within the scope of the present invention, and therefore, the concrete parameter that provides only is used for illustration, and limits scope of the present invention never in any form.
Next step, the plug by required crooked driving shaft form is moulded inserts in the chamber 19 in the end of straight (and pre-lax) driving shaft 20.Therefore, driving shaft 20 is forced to have the shape of plug.Plug can be comprised by material well-known to those skilled in the art, is in particular rustless steel, makes or contains above-mentioned material.
In the time of in plug is positioned at driving axocoel 19, use routine techniques to carry out local heat treatmet at the bending section of driving shaft 20.In the method in this step typical local heat treatmet condition can comprise the bending section that will be provided with plug in it be exposed to 555 ℃ 30 minutes, but these concrete parameters limit scope of the present invention never in any form.Corresponding, it will be apparent to those skilled in that the number of times and the temperature that are used for the local heat treatmet step can have other changes, each changes all within the scope of the present invention.Local heat treatmet provides bigger stress relieving than previous pre-lax heat treatment step, in addition, provides the energy entanglement that alleviates even reduce within driving shaft 20 parts site, with crooked in BENDING PROCESS.Entanglement in 20 of the driving shafts is fixed, even if there be not the auxiliary of plug like this, also can keep its bending shape.
After local heat treatmet was finished, plug was removed, and the bending status of driving shaft 20 is kept, and formed pre-bending pars convoluta 100 of the present invention like this.Therefore, the technology of description provides a kind of to be had fixing high H and a long L and has regulated curved surface, pre-fixes and pre-bending pars convoluta 100 that can not dynamic adjustments.Improved method step comprises the electrobrightening of pre-bending pars convoluta 100, and particularly driving shaft 20 is subjected to the part of local heat treatmet, to remove all oxidations.
Other mechanism and methods that are used to form pre-bending pars convoluta 100 of the present invention can comprise the use shape memory alloy material, and are taken into account among the present invention.A material that can be used for the pre-bending pars convoluta is a marmem, as Nitinol (NiTi), is commonly called nitinol (Nitinol).Nitinol has super-elasticity and surpasses traditional stainless enhancing flexible, and this can make lead 15 navigate in the process of target stenosis in grind section 28, is easy to insert driving axocoel 19 and pre-bending pars convoluta 100.
Can be used for forming the example of superelastic alloy of the pre-bending pars convoluta 100 of some embodiments of the invention, comprise nitinol, be described in detail in United States Patent (USP) 4,665, in 906.United States Patent (USP) 4,665, as with reference to introducing, described concrete by its disclosure some clear and definite for 906 disclosed contents, has composition, characteristic, chemical property and the behavior thereof of hyperelastic alloy in the operating temperature range of the pre-bending pars convoluta 100 of driving shaft 20 of the present invention.
No matter which kind of method of employing and/or material obtain pre-bending pars convoluta 100 of the present invention, pre-bending pars convoluta 100 all had the prebuckling structure of curved surface as previously mentioned before inserting patient's vascular system.By to insert substantially be the lead 15 of wire driving axocoel, pre-bending pars convoluta 100 then mechanically deform to basic be wire and/or linear structure and curved surface.In driving shaft 20 and lead 15 combinations, particularly according to method described herein, be introduced in target blood with after using, lead 15 can be moved out of, and therefore the pre-bending pars convoluta 100 of driving shaft is returned to its initial prebuckling structure and curved surface, or to its maximum height H and greatest length L diameter, arrive other height H and length L, if, to give an example, formative memory makes the pre-bending pars convoluta 100 manufactured as nitinol.
In addition, according to the operational approach of using, as described below, make the pre-bending pars convoluta 100 of embodiment by formative memory material such as nitinol by thermal induction, the height H and the length L of control pre-bending pars convoluta 100, the dynamic adjustments of flexure plane can cause that it is returned to its initiating structure (maximum height H and length L, or other high H and long L).
The example of the flexure plane of dynamic adjustments control pre-bending pars convoluta 100 is, can be as high H and long L by pre-bending pars convoluta 100 being used the heat energy (or freezing) of controlled amounts, and wherein, this embodiment is obtained by marmem such as nitinol manufacturing.By such processing, as obtaining littler high H by cooling pre-bending pars convoluta 100, the flexure plane of pre-bending pars convoluta can be more flat.Effect is replaced, and by pre-bending pars convoluta 100 is heated, flexure plane can have bigger high H.
For example, and be non-limiting, by pre-bending pars convoluta 100 being immersed in physiology compatible liquid heating and/or thermal control (as saline solution, ringer's solution (Ringer ' s Solution) etc.), heat can be applied to pre-bending pars convoluta 100, liquid is introduced by the chamber of the conduit 13 as shown in Fig. 1,7 and 9, can also introduce driving shaft 20 by this chamber.Introduce the temperature of liquid by control, warm or cool, the temperature of pre-bending pars convoluta 100 is similarly controlled, like this when lead 15 when bending section 100 adjacents are recalled, flexure plane also controllably is affected accordingly.This makes can carry out further dynamic adjustments to the flexure plane of pre-bending pars convoluta 100, as high H and long L, to obtain multiple flexure plane coupling vascular environment, need not operator's mobile device in operating process.
As an alternative, feed electric current by near-end from lead 15, remove lead 15 then, the temperature of control pre-bending pars convoluta 100, make that pre-bending pars convoluta 100 is controlled to have and be applied to pre-bending pars convoluta hot corresponding high H and the long L that miscarriage gives birth to that power on, reach its prebuckling structure and curved surface, the high H of the pre-bending pars convoluta 100 of marmem manufacturing and long L are able to dynamic adjustments, make the various flexure planes of pre-bending pars convoluta 100 dynamically adaptings.As an alternative, by using the Peltier device of originally knowing, can realize cooling effect.It will be apparent to those skilled in that, use electric current at lead 15 and can connect one or two joint realization by near-end at lead 15.
Forward Fig. 6 and 7 now to, expression be relevant with Fig. 2 as mentioned above being fixed on the driving shaft 20 of the present invention, have to the embodiment of the grind section 28 of the eccentric hat of the hollow entity of small part 28A.The height of pre-bending pars convoluta 100 is H, and long is L, is formed on the driving shaft 20, near driving the tip of the axis 20d.This expression to be the present invention do not having lead 15 to insert the situation that drives the axocoel (not shown)s, like this, pre-bending pars convoluta 100 keeps its initial prebuckling structure and curved surfaces.What Fig. 7 represented is by inserting lead 15 and be out of shape the pre-bending pars convoluta of aligning 100 by pre-bending pars convoluta 100 at least from driving axocoel 19.
Fig. 8 and 9 expressions be an alternative embodiment of the invention, with reference to Fig. 3 as previously mentioned, this embodiment has by the off-centre of driving shaft and expands the grind section 28 that the 28B of portion constitutes.Therefore, the height of pre-bending pars convoluta 100 is H, and long is L, is formed on the driving shaft 20, near driving the tip of the axis 20d.What Fig. 8 represented is the pre-bending pars convoluta 100 of its initial bending structure of board and curved surface, drives not insert lead 15 in the axocoel 19 with aligning pre-bending pars convoluta 100.What Fig. 9 represented manually is placed in the chamber 19 of driving shaft 20 when lead 15, particularly by the aligning of the distortion behind the pre-bending pars convoluta 100 effect.
Therefore, pre-bending pars convoluta 100 of the present invention, be included within the yield stress limit of material and the elastic limit material is operated, therefore, need have the crooked form that is shaped in advance, when lead 15 was placed by 19 of driving axocoels suitable with the pre-bending pars convoluta 100 shown in Fig. 1,7 and 9, this form was applicable to basic and is piped internal open space or pipeline, as producing the orbital motion of closing the pre-bending pars convoluta 100 static diameters of aligning greater than distortion in the tract.
But therefore elasticity (but and nonplastic) distortion of the pre-bending pars convoluta of driving shaft 20,19. are aligned substantially when driving axocoel to be inserted through at lead 15.Therefore, the pre-bending pars convoluta of driving shaft, in narrow path or chamber, when lead when shift out in the chamber of driving shaft, after particularly lead is drawn out the pre-bending pars convoluta 100 of driving shaft 20, can be returned to its initial warp architecture and curved surface.
Conspicuous and understood by those skilled in the art, the present invention can be by using the grind section 28 than minor diameter, in conjunction with pre-bending pars convoluta 100, intracavity get through with technology formerly in do not have the driving shaft 20 larger-diameter grindings of pre-bending pars convoluta 100 described herein to save the 28 suitable diameters that scan.As an alternative, in the quality that does not increase grind section 28 or change the geometric shape of grind section 28, use pre-bending pars convoluta 100 of the present invention in the high speed rotating process that continues, can obtain a bigger diameter that scans.In fact, grind section 28 can be littler, and the misery when introducing vascular system with further minimizing helps using the recovery of the wound that the present invention causes.
In addition, those skilled in the art will further understand, for the rotary speed of given driving shaft 20, and any amount of combination and permutation of aforesaid parameter.Therefore, any change or the enhancing of these parameters, or weaken/suppress the diameter of grind section 28 orbital motions.Like this, customizable, adjusting of the diameter of orbital motion and/or dynamic adjustments are to be applicable to single chamber and narrow.
Therefore, using the present invention to remove narrow method comprises:
Provide a maximum gauge to be slightly less than the lead of artery diameter, a flexibility, elongated, rotatable driving shaft, driving shaft can advance on the lead, and the pre-bending pars convoluta that includes grind section of a bending;
By, as advancing the pre-bending pars convoluta,, make the distortion of pre-bending pars convoluta with basic aligning pre-bending pars convoluta by lead;
Advance lead and driving shaft to enter in the chamber,, arrive near the target location, as stenosis to be removed as patient's vascular system;
Return and remove lead;
Make the pre-bending pars convoluta return back to that it is undeformed, and be the flexure plane state;
Rotating driveshaft, wherein pre-bending pars convoluta and grind section are scanned the rotating diameter that obtains greater than the static diameter of driving shaft;
Grind narrow;
By, as inserting lead again, make the distortion of pre-bending pars convoluta, and align the pre-bending pars convoluta basically and prepare against from the chamber, as withdrawing from the patient's vascular system;
From the chamber, withdraw from the driving shaft of lead and basic aligning.
Other embodiment can comprise the flexure plane that dynamic adjustments control pre-bending pars convoluta is provided, dynamic adjustments can be (1) by controlled use electric current with controlled heating, as by marmem, make the pre-bending pars convoluta as the nitinol nitinol, induce the bending of pre-bending pars convoluta; And/or (2) by spilling cloth heat along the propulsive conduit of driving shaft, and biocompatible solution is as saline solution or ringer's solution, the pre-bending pars convoluta, as by marmem, make the pre-bending pars convoluta as the nitinol nitinol, induce the bending of pre-bending pars convoluta.
Figure 10 and 11 expressions be that the various embodiments of grind section 28 of the present invention obtains, be roughly spiral helicine orbital path, do not show lead.For illustration purposes, the height of the helical-like path among Figure 10 and 11 has amplified, in fact, each helical-like path of grind section 28 is removed 37 removings in a surface layer tissue as thin as a wafer by tissue, when the device forward with oppositely by narrow when mobile repeatedly, expand the effect of grinding head 28 by off-centre and produced manyly, many such spirals are narrow to get through up hill and dale.
Figure 11 has represented three different turned positions that the off-centre of speckle turnery equipment in the tube chamber of the present invention is expanded grinding head 28.In each position, it is narrow that off-centre is expanded the lapped face contact of grinding head 28, thereby make it to be removed-three positions by being discerned with three of narrow contact different points, and these points indicate with B1, B2 and B3 in the drawings.Notice that each point normally expands same section-tissue of lapped face of grinding head 28 with the off-centre that contact of tissue and removes surperficial 37 parts, tissue remove surperficial 37 and the rotating shaft of driving shaft have radially ultimate range.
The present invention should not be considered to only limit to the above-mentioned example of mentioning, and should be considered to cover all aspects that the present invention relates to.Those skilled in the art can make easily and be applicable to multiple change of the present invention, equivalent processes and structural change after understanding this description.
Claims (72)
1. one kind is used to get through and has the endarterial narrow high-velocity tube intracavity speckle turnery device of given diameter, comprising:
Maximum gauge is less than the lead of artery diameter;
Flexible, elongated, rotatable, can propulsive driving shaft along lead, driving shaft is made of coil and the pre-bending pars convoluta that is provided with the bending of grind section.
2. high-velocity tube intracavity speckle turnery device according to claim 1, described pre-bending pars convoluta further has height and length.
3. high-velocity tube intracavity speckle turnery device according to claim 1, wherein the pre-bending pars convoluta further comprises at least one radius.
4. high-velocity tube intracavity speckle turnery device according to claim 1, wherein the pre-bending pars convoluta further comprises two radius.
5. high-velocity tube intracavity speckle turnery device according to claim 1, wherein the pre-bending pars convoluta further comprises the peak.
6. high-velocity tube intracavity speckle turnery device according to claim 5, wherein grind section to small part is positioned on the peak.
7. high-velocity tube intracavity speckle turnery device according to claim 3, wherein the pre-bending pars convoluta further comprises the peak, the peak comprises that at least one is positioned at the point on the driving shaft.
8. high-velocity tube intracavity speckle turnery device according to claim 7, wherein, the pre-bending pars convoluta comprises two radius, its peak is wire basically.
9. high-velocity tube intracavity speckle turnery device according to claim 4 further comprises two radius, and each radius all has a curvature, and the curvature of two radius is identical.
10. high-velocity tube intracavity speckle turnery device according to claim 4 further comprises two radius, and each radius all has a curvature, the curvature difference of two radius.
11. high-velocity tube intracavity speckle turnery device according to claim 1, wherein driving shaft has end, the contiguous driving shaft end of pre-bending pars convoluta.
12. high-velocity tube intracavity speckle turnery device according to claim 1, wherein grind section includes the coil of the pre-bending pars convoluta of grinding layer.
13. high-velocity tube intracavity speckle turnery device according to claim 1, wherein grind section comprises that driving shaft off-centre expands portion, and the coil sections at least of pre-bending pars convoluta has grinding layer.
14. high-velocity tube intracavity speckle turnery device according to claim 1, wherein grind section comprises that driving shaft expands portion with one heart, and the coil sections at least of pre-bending pars convoluta has grinding layer.
15. high-velocity tube intracavity speckle turnery device according to claim 1, wherein grind section comprises the off-centre grinding hat that is fixed on the driving shaft.
16. high-velocity tube intracavity speckle turnery device according to claim 1, wherein grind section comprises the concentric grinding hat that is fixed on the driving shaft.
17. high-velocity tube intracavity speckle turnery device according to claim 1, wherein grind section comprises the grinding awl that is fixed on the driving shaft.
18. high-velocity tube intracavity speckle turnery device according to claim 1, wherein driving shaft comprises turning cylinder, and the pre-bending pars convoluta has the peak, the turning cylinder of peak lateral run-out driving shaft.
19. high-velocity tube intracavity speckle turnery device according to claim 18 further comprises the grind section that is positioned at the peak of pre-bending pars convoluta to small part.
20. high-velocity tube intracavity speckle turnery device according to claim 1 further comprises when the pre-bending pars convoluta that does not have flexure plane when lead advances.
21. high-velocity tube intracavity speckle turnery device according to claim 20 further is included in the pre-bending pars convoluta that has the wire curved surface of aligning basically when lead advances.
22. high-velocity tube intracavity speckle turnery device according to claim 1 comprises that further the pre-bending pars convoluta made by marmem.
23. high-velocity tube intracavity speckle turnery device according to claim 1 comprises that further the pre-bending pars convoluta made by nitinol.
24. high-velocity tube intracavity speckle turnery device according to claim 1 comprises that further the pre-bending pars convoluta is adjusted to particular curvature.
25. high-velocity tube intracavity speckle turnery device according to claim 22 comprises that further the movable attitude of pre-bending pars convoluta is adjusted to multiple flexure plane.
26. one kind is used to get through and has the endarterial narrow high-velocity tube intracavity speckle turnery device of given diameter, comprising:
Maximum gauge is less than the lead of artery diameter;
Flexible, elongated, rotatable, can propulsive driving shaft along lead, driving shaft is made of coil and the pre-bending pars convoluta that is provided with the bending of grind section, and the pre-bending pars convoluta comprises grind section, height, length and at least one radius.
27. one kind is used to get through and has the endarterial narrow high-velocity tube intracavity speckle turnery device of given diameter, comprising:
Maximum gauge is less than the lead of artery diameter;
Flexible, elongated, rotatable, can propulsive driving shaft along lead, driving shaft is made of coil and the pre-bending pars convoluta that is provided with the bending of grind section, and the pre-bending pars convoluta comprises grind section, height, length and at least one radius,
Wherein, the pre-bending pars convoluta does not have flexure plane when lead advances, and the further pre-bending pars convoluta of wire curved surface of aligning basically of pre-bending pars convoluta.
28. a high-velocity tube intracavity speckle turnery system comprises:
Maximum gauge is less than the lead of artery diameter;
Flexible, elongated, rotatable, can be along the propulsive driving shaft of lead, described driving shaft has the pre-bending pars convoluta, and grind section to small part is positioned on the pre-bending pars convoluta; And elongated conduit, conduit has the chamber, wherein accommodates at least a portion driving shaft.
29. high-velocity tube intracavity speckle turnery according to claim 28 system further comprises:
Manually be connected to the liquid supply line of conduit; And
The bio-compatible solution of controlled temperature, wherein biocompatible solution replenishes and enters conduit by liquid supply line.
30. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein the pre-bending pars convoluta further has height and length.
31. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein the pre-bending pars convoluta further comprises at least one radius.
32. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein the pre-bending pars convoluta further comprises two radius.
33. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein the pre-bending pars convoluta further comprises the peak.
34. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein grind section to small part is positioned on the peak.
35. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein the pre-bending pars convoluta further comprises the peak, and the peak comprises that at least one is positioned at the point on the driving shaft.
36. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein, the pre-bending pars convoluta comprises two radius, and its peak is wire basically.
37. high-velocity tube intracavity speckle turnery according to claim 28 system further comprises two radius, each radius all has a curvature, and the curvature of two radius is identical.
38. high-velocity tube intracavity speckle turnery according to claim 28 system further comprises two radius, each radius all has a curvature, the curvature difference of two radius.
39. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein driving shaft has end, and the contiguous driving shaft end of pre-bending pars convoluta.
40. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein grind section includes the coil of the pre-bending pars convoluta of grinding layer.
41. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein grind section comprises that driving shaft off-centre expands portion, and the coil sections at least of pre-bending pars convoluta has grinding layer.
42. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein grind section comprises that driving shaft expands portion with one heart, and the coil sections at least of pre-bending pars convoluta has grinding layer.
43. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein grind section comprises that the off-centre that is fixed on the driving shaft grinds hat.
44. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein grind section comprises the concentric grinding hat that is fixed on the driving shaft.
45. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein grind section comprises the grinding awl that is fixed on the driving shaft.
46. high-velocity tube intracavity speckle turnery according to claim 28 system, wherein driving shaft comprises turning cylinder, and the pre-bending pars convoluta has the peak, the turning cylinder of peak lateral run-out driving shaft.
47. high-velocity tube intracavity speckle turnery according to claim 28 system further comprises the grind section that is positioned at the peak of pre-bending pars convoluta to small part.
48. high-velocity tube intracavity speckle turnery according to claim 28 system further comprises when the pre-bending pars convoluta that does not have flexure plane when lead advances.
49. according to the described high-velocity tube intracavity of claim 48 speckle turnery system, further be included in and when lead advances, have distortion, be the pre-bending pars convoluta of wire curved surface by aligning basically.
50. high-velocity tube intracavity speckle turnery according to claim 28 system comprises that further the pre-bending pars convoluta made by marmem.
51. high-velocity tube intracavity speckle turnery according to claim 28 system comprises that further the pre-bending pars convoluta made by nitinol.
52. high-velocity tube intracavity speckle turnery according to claim 28 system comprises that further the pre-bending pars convoluta is adjusted to particular curvature.
53., comprise that further the movable attitude of pre-bending pars convoluta is adjusted to multiple flexure plane according to the described high-velocity tube intracavity of claim 50 speckle turnery system.
54. a grind section of using flexible drive shaft is used for producing the method for a rotating diameter in tube chamber, wherein rotating diameter comprises greater than the static diameter of grind section:
The lead of a maximum gauge less than artery diameter is provided;
Provide a flexibility, elongated, rotatable, can be along the propulsive driving shaft of lead, and the pre-bending pars convoluta of a bending, the pre-bending pars convoluta is provided with grind section;
An elongated conduit is provided, and conduit has the chamber, wherein accommodates at least a portion driving shaft;
Advance the pre-bending pars convoluta along lead, make its distortion and basic aligning pre-bending pars convoluta;
Advance lead and driving shaft to enter in the chamber,, arrive near the target location, as stenosis to be removed as patient's vascular system;
Recall lead;
Make the pre-bending pars convoluta return back to that it is undeformed, and be the flexure plane state;
Rotating driveshaft, wherein pre-bending pars convoluta and grind section are scanned the rotating diameter that obtains greater than the static diameter of driving shaft;
Grind narrow;
Lead is inserted through again the chamber of driving shaft;
Make the distortion of pre-bending pars convoluta with basic aligning pre-bending pars convoluta, in order to from tube chamber, as withdrawing from the patient's vascular system;
From the chamber, withdraw from the driving shaft of lead and basic aligning.
55., further comprise according to the described method of claim 54:
The one pre-bending pars convoluta of being made by marmem is provided; And
Flexure plane to the pre-bending pars convoluta carries out dynamic adjustments control.
56. according to the described method of claim 55, further comprise thermokinetics control pre-bending pars convoluta, carry out dynamic adjustments control with flexure plane to the pre-bending pars convoluta.
57., further comprise the bio-compatible solution flushing pre-bending pars convoluta that uses the control temperature, to carry out dynamic adjustments control according to the described method of claim 56.
58., comprise that further the temperature that changes bio-compatible solution is to carry out dynamic adjustments control according to the described method of claim 57.
59., further comprise and use electric current to carry out dynamic adjustments control according to the described method of claim 56.
60., further comprise the electric current lead-in conductor to improve or to reduce the temperature of pre-bending pars convoluta, to carry out dynamic adjustments control according to the described method of claim 59.
61., further comprise and use Peltier device cooling pre-bending pars convoluta, to carry out dynamic adjustments control according to the described method of claim 60.
62., further comprise the pre-bending of being made by nitinol pars convoluta is provided according to the described method of claim 55.
63. one kind is applied in the operation of high-velocity tube intracavity speckle turnery to the method that the flexure plane of pre-bending pars convoluta carries out dynamic adjustments control, comprises:
The lead of a maximum gauge less than artery diameter is provided;
Provide a flexibility, elongated, rotatable, can be along the propulsive driving shaft of lead;
An elongated conduit is provided, and conduit has the chamber, wherein accommodates at least a portion driving shaft;
The pre-bending pars convoluta that provides a marmem to be arranged on the bending on the driving shaft, the pre-bending pars convoluta of driving shaft is made by marmem;
A grind section that is positioned at the pre-bending pars convoluta of driving shaft to small part is provided;
Advance driving shaft along lead, make the pre-bending pars convoluta be deformed into basic curved surface, to contiguous stenosis to be ground for aligning.
Recall lead, make the pre-bending pars convoluta return back to the flexure plane of its non-distortion;
Rotating driveshaft grinds narrow;
The temperature of heat power control pre-bending pars convoluta is carried out dynamic adjustments control to the flexure plane of pre-bending pars convoluta;
Continue to grind narrow.
64., further comprise the bio-compatible solution flushing pre-bending pars convoluta that uses the control temperature, to carry out dynamic adjustments control according to the described method of claim 63.
65., comprise that further the temperature that changes bio-compatible solution is to carry out dynamic adjustments control according to the described method of claim 64.
66., further comprise and use electric current to carry out dynamic adjustments control according to the described method of claim 63.
67., further comprise the electric current lead-in conductor to improve or to reduce the temperature of pre-bending pars convoluta, to carry out dynamic adjustments control according to the described method of claim 66.
68., further comprise and use Peltier device cooling pre-bending pars convoluta, to carry out dynamic adjustments control according to the described method of claim 66.
69., further comprise the pre-bending of being made by nitinol pars convoluta is provided according to the described method of claim 63.
70. a manufacturing has the method for the driving shaft of pre-bending pars convoluta, comprising:
Use coil winding machine coiling well known to those skilled in the art to obtain driving shaft;
The driving shaft that coiling is obtained is heat-treated the coil with pre-lax driving shaft;
Insert plug at pre-lax driving shaft proximal end place with the required flexure plane that is used for the pre-bending pars convoluta;
Keep plug in position, the bending section of driving shaft 20 is carried out local heat treatmet; And
Remove plug.
71., further comprise and use marmem to make the pre-bending pars convoluta according to the described method of claim 70.
72., further comprise and use nitinol to make the pre-bending pars convoluta according to the described method of claim 70.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/951,870 US8551128B2 (en) | 2007-12-06 | 2007-12-06 | Rotational atherectomy device with pre-curved drive shaft |
| US11/951,870 | 2007-12-06 | ||
| PCT/US2008/084348 WO2009073409A1 (en) | 2007-12-06 | 2008-11-21 | Rotational atherectomy device with pre-curved drive shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101951844A true CN101951844A (en) | 2011-01-19 |
| CN101951844B CN101951844B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880120679.0A Expired - Fee Related CN101951844B (en) | 2007-12-06 | 2008-11-21 | Rotational atherectomy device with pre-curved drive shaft |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US8551128B2 (en) |
| EP (1) | EP2217158B1 (en) |
| JP (1) | JP5268199B2 (en) |
| CN (1) | CN101951844B (en) |
| AU (1) | AU2008331574B2 (en) |
| CA (1) | CA2703409C (en) |
| ES (1) | ES2527271T3 (en) |
| HK (1) | HK1147412A1 (en) |
| WO (1) | WO2009073409A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106535790A (en) * | 2014-07-18 | 2017-03-22 | 心血管系统股份有限公司 | Methods, devices and systems for slow rotation of drive shaft driven atherectomy systems |
| CN108523965A (en) * | 2012-09-17 | 2018-09-14 | 心血管系统股份有限公司 | Rotary rubbing device with eccentric grinding head |
| CN114016091A (en) * | 2020-09-25 | 2022-02-08 | 广州博鑫医疗技术有限公司 | Method and device for producing a drive shaft for an insertion-type rotational grinding device |
| CN114368161A (en) * | 2021-11-25 | 2022-04-19 | 广州博鑫医疗技术有限公司 | Manufacturing method of eccentric rotary grinding assembly and eccentric rotary grinding assembly |
Families Citing this family (56)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008107885A2 (en) * | 2007-03-05 | 2008-09-12 | Alon Shalev | Multi-component expandable supportive bifurcated endoluminal grafts and methods for using same |
| CA2709278A1 (en) | 2007-12-15 | 2009-06-25 | Endospan Ltd. | Extra-vascular wrapping for treating aneurysmatic aorta in conjunction with endovascular stent-graft and methods thereof |
| US8795304B2 (en) * | 2009-06-18 | 2014-08-05 | Cardiovascular Systems, Inc. | Atherectomy device, system and method having a bi-directional distal expandable ablation element |
| CA3009244C (en) | 2009-06-23 | 2020-04-28 | Endospan Ltd. | Vascular prostheses for treating aneurysms |
| US8979892B2 (en) | 2009-07-09 | 2015-03-17 | Endospan Ltd. | Apparatus for closure of a lumen and methods of using the same |
| US20110087254A1 (en) * | 2009-10-09 | 2011-04-14 | Cardiovascular Systems, Inc. | Rotational atherectomy device with keyed exchangeable drive shaft |
| EP2506810B1 (en) | 2009-11-30 | 2020-07-08 | Endospan Ltd | Multi-component stent-graft system for implantation in a blood vessel with multiple branches |
| CA2783554C (en) | 2009-12-08 | 2016-02-16 | Endospan Ltd. | Endovascular stent-graft system with fenestrated and crossing stent-grafts |
| US8956397B2 (en) | 2009-12-31 | 2015-02-17 | Endospan Ltd. | Endovascular flow direction indicator |
| EP2533722B1 (en) | 2010-02-08 | 2017-03-29 | Endospan Ltd. | Thermal energy application for prevention and management of endoleaks in stent-grafts |
| MX338216B (en) * | 2010-03-11 | 2016-04-07 | Advanced Catheter Therapies Inc | Atherectomy device. |
| US9907567B2 (en) * | 2010-05-04 | 2018-03-06 | Samuel Shiber | Mechanical — pharmaceutical system for opening obstructed bodily vessels |
| US10952764B2 (en) | 2010-05-04 | 2021-03-23 | Samuel Shiber | Rotary catheter drive unit containing seal-sets |
| US20150094733A1 (en) | 2010-05-04 | 2015-04-02 | Samuel Shiber | Rotary catheter drive unit containing seal-sets |
| CA2826022A1 (en) | 2011-02-03 | 2012-08-09 | Endospan Ltd. | Implantable medical devices constructed of shape memory material |
| US9855046B2 (en) | 2011-02-17 | 2018-01-02 | Endospan Ltd. | Vascular bands and delivery systems therefor |
| US9486341B2 (en) | 2011-03-02 | 2016-11-08 | Endospan Ltd. | Reduced-strain extra-vascular ring for treating aortic aneurysm |
| US8574287B2 (en) | 2011-06-14 | 2013-11-05 | Endospan Ltd. | Stents incorporating a plurality of strain-distribution locations |
| US8951298B2 (en) | 2011-06-21 | 2015-02-10 | Endospan Ltd. | Endovascular system with circumferentially-overlapping stent-grafts |
| WO2013005207A1 (en) | 2011-07-07 | 2013-01-10 | Endospan Ltd. | Stent fixation with reduced plastic deformation |
| DK2744424T3 (en) * | 2011-08-17 | 2018-01-22 | Samuel Shiber | Adaptively rotating catheter to open clogged vessels in the body |
| US9839510B2 (en) | 2011-08-28 | 2017-12-12 | Endospan Ltd. | Stent-grafts with post-deployment variable radial displacement |
| US9427339B2 (en) | 2011-10-30 | 2016-08-30 | Endospan Ltd. | Triple-collar stent-graft |
| EP2785277B1 (en) | 2011-12-04 | 2017-04-05 | Endospan Ltd. | Branched stent-graft system |
| WO2013171730A1 (en) | 2012-05-15 | 2013-11-21 | Endospan Ltd. | Stent-graft with fixation elements that are radially confined for delivery |
| CN105007860B (en) | 2013-01-08 | 2017-05-10 | 恩多斯潘有限公司 | Minimization of stent-graft migration during implantation |
| CN105208969B (en) | 2013-03-11 | 2017-10-20 | 恩多斯潘有限公司 | Multicompartment stent graft system for dissection of aorta |
| EP3260067B1 (en) * | 2013-03-12 | 2019-12-04 | Boston Scientific Scimed, Inc. | Vibration and inertia enhanced atherectomy |
| US9936970B2 (en) | 2013-03-14 | 2018-04-10 | Cardiovascular Systems, Inc. | Devices, systems and methods for an oscillating crown drive for rotational atherectomy |
| US9750525B2 (en) | 2013-03-14 | 2017-09-05 | Cardiovascular Systems, Inc. | Devices, systems and methods for an oscillating crown drive for rotational atherectomy |
| US20150094749A1 (en) * | 2013-03-14 | 2015-04-02 | Cardiovascular Systems, Inc. | Devices, systems and methods for a piloting tip bushing for rotational atherectomy |
| US20150005791A1 (en) * | 2013-06-28 | 2015-01-01 | Cardiovascular Systems, Inc. | Atherectomy device having combined open/close drive shaft |
| US20150080795A1 (en) | 2013-07-26 | 2015-03-19 | Cardiovascular Systems, Inc. | Devices, systems and methods for performing atherectomy and subsequent balloon angioplasty without exchanging devices |
| CN105473046B (en) * | 2013-08-06 | 2018-01-02 | 奥林巴斯株式会社 | Insertion apparatus |
| US9468457B2 (en) | 2013-09-30 | 2016-10-18 | Cardiovascular Systems, Inc. | Atherectomy device with eccentric crown |
| USD766433S1 (en) | 2013-11-04 | 2016-09-13 | Cardiovascular Systems, Inc. | Eccentric crown |
| WO2015075708A1 (en) | 2013-11-19 | 2015-05-28 | Endospan Ltd. | Stent system with radial-expansion locking |
| US10271869B2 (en) | 2014-03-01 | 2019-04-30 | Rex Medical, L.P. | Atherectomy device |
| CN106456208B (en) | 2014-03-12 | 2020-04-03 | 波士顿科学有限公司 | Injection lubrication atherectomy catheter |
| US10405878B2 (en) | 2014-07-25 | 2019-09-10 | Boston Scientific Scimed, Inc. | Rotatable medical device |
| WO2016089847A1 (en) | 2014-12-04 | 2016-06-09 | Boston Scientific Scimed, Inc. | Rotatable medical device |
| CN106999194A (en) * | 2014-12-11 | 2017-08-01 | 心血管系统股份有限公司 | Apparatus, system and method for the sophisticated sleeve pipe of guiding for rotary-cut |
| US10485684B2 (en) | 2014-12-18 | 2019-11-26 | Endospan Ltd. | Endovascular stent-graft with fatigue-resistant lateral tube |
| US10463389B2 (en) | 2014-12-27 | 2019-11-05 | Rex Medical, L.P. | Atherectomy device |
| US10433868B2 (en) | 2014-12-27 | 2019-10-08 | Rex Medical, L.P. | Artherectomy device |
| US10080571B2 (en) | 2015-03-06 | 2018-09-25 | Warsaw Orthopedic, Inc. | Surgical instrument and method |
| US11253292B2 (en) | 2015-09-13 | 2022-02-22 | Rex Medical, L.P. | Atherectomy device |
| US10307175B2 (en) | 2016-03-26 | 2019-06-04 | Rex Medical, L.P | Atherectomy device |
| US11224458B2 (en) | 2017-04-10 | 2022-01-18 | The Regents Of The University Of Michigan | Hydrodynamic vortex aspiration catheter |
| JP7332165B2 (en) * | 2017-04-10 | 2023-08-23 | ザ・リージェンツ・オブ・ザ・ユニバーシティ・オブ・ミシガン | hydrodynamic vortex suction catheter |
| EP3906867B1 (en) | 2017-05-03 | 2023-07-12 | Medtronic Vascular Inc. | Tissue-removing catheter |
| US11690645B2 (en) | 2017-05-03 | 2023-07-04 | Medtronic Vascular, Inc. | Tissue-removing catheter |
| US20190275296A1 (en) * | 2018-03-12 | 2019-09-12 | Cardiovascular Systems, Inc. | Steerable sheath for intravascular medical devices |
| EP3880096A1 (en) | 2018-11-16 | 2021-09-22 | Medtronic Vascular Inc. | Tissue-removing catheter |
| US11819236B2 (en) | 2019-05-17 | 2023-11-21 | Medtronic Vascular, Inc. | Tissue-removing catheter |
| CN112145746B (en) * | 2020-11-30 | 2021-03-23 | 上海微创医疗器械（集团）有限公司 | Drive device and rotary grinding equipment |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2756752A (en) * | 1953-12-23 | 1956-07-31 | Scherlis Irving | Surgical instrument |
| JPS6249841A (en) * | 1985-08-30 | 1987-03-04 | オリンパス光学工業株式会社 | Thrombosis removing jig |
| CA1293663C (en) | 1986-01-06 | 1991-12-31 | David Christopher Auth | Transluminal microdissection device |
| JPS62233153A (en) * | 1986-04-03 | 1987-10-13 | オリンパス光学工業株式会社 | Thrombus removing instrument |
| JPH02172456A (en) * | 1988-12-26 | 1990-07-04 | Kato Hatsujo Kaisha Ltd | Treatment appliance of tube-form organ |
| JP3035307B2 (en) * | 1989-02-06 | 2000-04-24 | テルモ株式会社 | Apparatus for securing inner diameter of lumen of tubular organ and lumen retaining catheter incorporating the same |
| US5217474A (en) * | 1991-07-15 | 1993-06-08 | Zacca Nadim M | Expandable tip atherectomy method and apparatus |
| WO1993001753A2 (en) * | 1991-07-15 | 1993-02-04 | Zacca Nadim M | Atherectomy and angioplasty method and apparatus |
| US5853408A (en) | 1992-08-20 | 1998-12-29 | Advanced Cardiovascular Systems, Inc. | In-vivo modification of the mechanical properties of surgical devices |
| US5312427A (en) * | 1992-10-16 | 1994-05-17 | Shturman Cardiology Systems, Inc. | Device and method for directional rotational atherectomy |
| US5356418A (en) * | 1992-10-28 | 1994-10-18 | Shturman Cardiology Systems, Inc. | Apparatus and method for rotational atherectomy |
| US5360432A (en) * | 1992-10-16 | 1994-11-01 | Shturman Cardiology Systems, Inc. | Abrasive drive shaft device for directional rotational atherectomy |
| WO1994017739A1 (en) * | 1993-02-02 | 1994-08-18 | Shturman Cardiology Systems, Inc. | Abrasive drive shaft device for rotational atherectomy |
| US5584843A (en) | 1994-12-20 | 1996-12-17 | Boston Scientific Corporation | Shaped wire multi-burr rotational ablation device |
| US5554163A (en) * | 1995-04-27 | 1996-09-10 | Shturman Cardiology Systems, Inc. | Atherectomy device |
| US5658302A (en) * | 1995-06-07 | 1997-08-19 | Baxter International Inc. | Method and device for endoluminal disruption of venous valves |
| US5681336A (en) | 1995-09-07 | 1997-10-28 | Boston Scientific Corporation | Therapeutic device for treating vien graft lesions |
| US5766192A (en) * | 1995-10-20 | 1998-06-16 | Zacca; Nadim M. | Atherectomy, angioplasty and stent method and apparatus |
| US5897566A (en) * | 1996-07-15 | 1999-04-27 | Shturman Cardiology Systems, Inc. | Rotational atherectomy device |
| US5843103A (en) | 1997-03-06 | 1998-12-01 | Scimed Life Systems, Inc. | Shaped wire rotational atherectomy device |
| US6015420A (en) * | 1997-03-06 | 2000-01-18 | Scimed Life Systems, Inc. | Atherectomy device for reducing damage to vessels and/or in-vivo stents |
| US7037316B2 (en) | 1997-07-24 | 2006-05-02 | Mcguckin Jr James F | Rotational thrombectomy device |
| US6494890B1 (en) * | 1997-08-14 | 2002-12-17 | Shturman Cardiology Systems, Inc. | Eccentric rotational atherectomy device |
| US6132444A (en) | 1997-08-14 | 2000-10-17 | Shturman Cardiology Systems, Inc. | Eccentric drive shaft for atherectomy device and method for manufacture |
| US6156046A (en) | 1997-11-07 | 2000-12-05 | Prolifix Medical, Inc. | Methods and systems for treating obstructions in a body lumen |
| US6146395A (en) | 1998-03-05 | 2000-11-14 | Scimed Life Systems, Inc. | Ablation burr |
| US6129750A (en) * | 1999-03-23 | 2000-10-10 | Cardiac Pacemakers, Inc. | Fixation mechanism for a coronary venous pacing lead |
| US6663613B1 (en) * | 2000-01-25 | 2003-12-16 | Bacchus Vascular, Inc. | System and methods for clot dissolution |
| US6416523B1 (en) | 2000-10-03 | 2002-07-09 | Scimed Life Systems, Inc. | Method and apparatus for creating channels through vascular total occlusions |
| US7507245B2 (en) * | 2001-10-19 | 2009-03-24 | Cardiovascular Systems, Inc. | Rotational angioplasty device with abrasive crown |
| US20050149083A1 (en) * | 2004-01-07 | 2005-07-07 | Dmitriy Prudnikov | Terminal guide for rotational atherectomy device and method of using same |
| US20050228417A1 (en) * | 2004-03-26 | 2005-10-13 | Teitelbaum George P | Devices and methods for removing a matter from a body cavity of a patient |
-
2007
- 2007-12-06 US US11/951,870 patent/US8551128B2/en not_active Expired - Fee Related
-
2008
- 2008-11-21 EP EP08857496.7A patent/EP2217158B1/en not_active Not-in-force
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- 2008-11-21 CA CA2703409A patent/CA2703409C/en not_active Expired - Fee Related
- 2008-11-21 JP JP2010536977A patent/JP5268199B2/en not_active Expired - Fee Related
- 2008-11-21 CN CN200880120679.0A patent/CN101951844B/en not_active Expired - Fee Related
- 2008-11-21 WO PCT/US2008/084348 patent/WO2009073409A1/en active Application Filing
- 2008-11-21 ES ES08857496.7T patent/ES2527271T3/en active Active
-
2009
- 2009-10-13 US US12/578,222 patent/US8628551B2/en not_active Expired - Fee Related
-
2011
- 2011-02-18 HK HK11101615.0A patent/HK1147412A1/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523965A (en) * | 2012-09-17 | 2018-09-14 | 心血管系统股份有限公司 | Rotary rubbing device with eccentric grinding head |
| CN108523965B (en) * | 2012-09-17 | 2022-02-11 | 心血管系统股份有限公司 | Rotary grinding device with eccentric grinding head |
| CN106535790A (en) * | 2014-07-18 | 2017-03-22 | 心血管系统股份有限公司 | Methods, devices and systems for slow rotation of drive shaft driven atherectomy systems |
| CN114016091A (en) * | 2020-09-25 | 2022-02-08 | 广州博鑫医疗技术有限公司 | Method and device for producing a drive shaft for an insertion-type rotational grinding device |
| CN114368161A (en) * | 2021-11-25 | 2022-04-19 | 广州博鑫医疗技术有限公司 | Manufacturing method of eccentric rotary grinding assembly and eccentric rotary grinding assembly |
| CN114368161B (en) * | 2021-11-25 | 2024-03-26 | 广州博鑫医疗技术有限公司 | Manufacturing method of eccentric rotary grinding assembly and eccentric rotary grinding assembly |
Also Published As
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|---|---|
| CA2703409A1 (en) | 2009-06-11 |
| WO2009073409A1 (en) | 2009-06-11 |
| US20100036402A1 (en) | 2010-02-11 |
| CN101951844B (en) | 2014-07-30 |
| AU2008331574B2 (en) | 2015-01-22 |
| US20090149877A1 (en) | 2009-06-11 |
| EP2217158A4 (en) | 2011-10-19 |
| EP2217158B1 (en) | 2014-10-15 |
| US8628551B2 (en) | 2014-01-14 |
| JP5268199B2 (en) | 2013-08-21 |
| EP2217158A1 (en) | 2010-08-18 |
| ES2527271T3 (en) | 2015-01-22 |
| HK1147412A1 (en) | 2011-08-12 |
| US8551128B2 (en) | 2013-10-08 |
| JP2011505907A (en) | 2011-03-03 |
| AU2008331574A1 (en) | 2009-06-11 |
| CA2703409C (en) | 2016-01-19 |
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